TY  - BOOK
AU  - COPI (Irving M)
TI  - Introduction to logic Ed 2
U1  - 160/25 
PY  - 1961///
CY  - New York
PB  - Macmillan & Co. Ltd.
KW  - to
KW  - logic
KW  - Introduction
KW  - Ed
KW  - 2
ER  -